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prodlim
2012 Nov 22
0
Mixed models and learning curves
...Observations: 145
Number of Groups: 5
>
Do you think this is good enough to demonstrate a learning effect.
Learning curves are exponential. I have been trying to log transform the response variable but then p-values are saying that previous experience has no significance.
> mb<-lme(log.prodtime~Trial+Previous.experience+Trial*Previous.experience, data= Data27_04, random=~1|Student, method="ML")
> summary(mb)
Linear mixed-effects model fit by maximum likelihood
Data: Data27_04
AIC BIC logLik
225.1042 248.9181 -104.5521
Random effects:
Formula: ~1 | Student...